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Full text of "IS 15321: Molten Metal Splash Protective Hoods--Specification"

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Disclosure to Promote the Right To Information 

Whereas the Parliament of India has set out to provide a practical regime of right to 
information for citizens to secure access to information under the control of public authorities, 
in order to promote transparency and accountability in the working of every public authority, 
and whereas the attached publication of the Bureau of Indian Standards is of particular interest 
to the public, particularly disadvantaged communities and those engaged in the pursuit of 
education and knowledge, the attached public safety standard is made available to promote the 
timely dissemination of this information in an accurate manner to the public. 




Mazdoor Kisan Shakti Sangathan 
"The Right to Information, The Right to Live'' 



IS 15321 (2003) : Molten Metal Splash Protective 
Hoods — Specification. ICS 13.040.10 




Jawaharlal Nehru 
'Step Out From the Old to the New" 



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Satyanarayan Gangarara Pitroda 
Invent a New India Using Knowledge 



Bhartrhari — Nitisatakam 
''Knowledge is such a treasure which cannot be stolen" 




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1815321:2003 

Indian Standard 

MOLTEN METAL SPLASH PROTECTIVE HOODS — 

SPECIFICATION 



ICS 13.040.10 



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© BIS 2003 

BUREAU OF INDIAN STANDARDS 

MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG 

NEW DELHI 110002 



A%2003 PriceGroup4 



Industrial Safety and Chemical Hazards Sectional Committee, CHD 8 



FOREWORD 

This Indian Standard was adopted by the Bureau of Indian Standards, after the draft finalized by the Industrial 
Safety and Chemical Hazards Sectional Committee had been approved by the Chemical Division Council. 

In iron, steel and other metallurgical industries, the workers have to handle molten metals, and there is a good 
chance of splashing of molten metal on body and head of the workers. To save the workers from such accidents, 
molten metal splash protective hood is required. As it is an important safety item, the Committee felt the need to 
prepare a standard on this subject. 

There is no ISO Standard on this subject. This standard has been prepared based on the indigenous technology 
available in the country. 

The composition of the Committee responsible for formulation of this standard is given in Armex D. 

For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, 
observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS 2 : 1 960 
'Rules for rounding off numerical values (revised)'. The nimiber of significant places retained in the rounded off 
value shall be the same as that of the specified value in this standard. 



IS 15321 :2003 



Indian Standard 

MOLTEN METAL SPLASH PROTECTIVE HOODS — 

SPECIFICATION 



1 SCOPE 

This standard prescribes requirements, method of test 
and samphng for molten metal splash protective hoods. 
Some of the special requirements for the cloth to be 
used for making such hoods are also specified in this 
standard. 

2 REFERENCES 

The standards listed in Annex A contain provisions, 
which through reference in this text, constitute 
provisions of this standard. At the time of publication, 
the editions indicated were valid. All standards are 
subject to revision, and parties to agreements based on 
this standard are encouraged to investigate the possibility 
of applying the most recent editions of the standards. 

3 TERMINOLOGY 

For the purpose of this standard, definitions given in 
IS 12110 shall apply. 

4 MATERIALS 

4.1 Fabric 

The basic material of the hoods shall be flame rctardant 
ardent treated quality cotton drill and shall conform to 
the requirements of variety No. 4, specified in IS 177. 
The requirements for dimensional change on soaking 
and flame resistance (PR) durability shall be in 
accordance with Table 1. 

Table 1 Requirements for Fabric 

{Clause A A) 



SI Characteristic 


Requirement 


Methods of 


Na, 




Test,Refto 




IS No. 


Annex 


(1) (2) 


(3) 


(4) 


(5) 


i) Dimensional change on 






soaking, percent. Max 




IS 2977 


__ 


Warp 


2 






Weft 


2 






li) Flame resistance 








durability, Min 








Washing 


6 cycles 


__ 


B 


Dry-cleaning 


12 cycles 







4.1.1 Flame Resistance Performance Requirements 

4.1.1.1 The basic material of the hood and the material 
for lining shall have flammability requirements as 



given in 4.1.1.2 when tested in accordance with 
Method A of IS 11871. 

4.1.1.2 No test specimen shall continue to flame for 
more than 8 seconds after the igniting flame is 
removed. Afterglow shall not spread beyond the area 
of material charred by flaming. The average length of 
the material, which chars on the six specimens shall 
not exceed 85 mm and the maximum charred material 
in any one specimen shall not exceed 1 14 mm. 

4.2 Fasteners 

The fasteners shall be scovill nickel plated brass ring 
female press studs. 

4.3 Threads 

The threads used for stitching shall be inherendy fire- 
resistant or be so treated that it shall not smolder back 
along the seam when ignited. 

5 DESIGN AND CONSTRUCTION 

5.1 Design 

The design of the hoods shall be as given in Fig. 1. 
The inner layer of hood shall be with flame retardant 
cotton material. It shall be so made as to be attached 
easily to the jacket collar by means of press studs. 

5.2 Size 

The hoods shall be capable of covering any type of 
protective helmet. The size designation of the hood 
shall be in accordance with IS 10015 (Part 8). 

5.3 Seam Strength 

The seam strength of the hoods shall not be less than 
140 N when tested in accordance with Annex C. 

6 PACKING AND MARKING 

6.1 Packing 

The hoods shall be packed in polyethene packets unless 
otherwise agreed to between the purchaser and the 
supplier, 

6.2 Marking 

6.2.1 The hoods shall be marked with the following: 

a) 'Molten metal splash protective hood', 

b) 'Flame retardant fabric*. 



IS 15321 :2003 



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All dimensions in millimetres. 

Fig. 1 Molten Metal Splash Protective Hood 



c) Indication of the source of manufacture, 

d) Batch number, and 

e) Date of manufacture, 

6.2,2 BIS Certification Marking 

The hoods may also be marked with the Standard Mark. 

6.2*2.1 The use of the Standard Mark is governed by 
the provisions of the Bureau of Indian Standards Act, 
1986 and Rules and Regulations made thereunder. The 
details of conditions under which the licence for use 
of the Standard Mark may be granted to manufacturers 
or producers may be obtained from the Bureau of 
Indian Standards. 

7 SAMPLING AND CRITERIA FOR 
CONFORMITY 

7.1 Lot 

Ail the molten metal splash protective hoods of the 
same size, style and made from the same material and 
produced under similar conditions of manufacture shall 
constitute a lot. 

7.1.1 All the lots shall be tested separately for testing 
the conformity of the lot to the requirements of the 
standard. 

7.2 The number of samples to be drawn shall depend 
upon the size of the lot and shall.be as per Table 2. 
The samples shall be selected at random in accordance 

with IS 4905. 



7.3 Number of Tests and Criteria for Conformity 

73.1 The sample selected according to col 2 of Table 2 
and shall be tested for the requirements of fasteners, 
threads, design (as per Fig. 1 ) and construction (as per 5,1 ). 

7.3.1.1 The lot shall be considered as conforming to 
the above requirements if there is no failure. Otherwise, 
the lot shall be rejected. 

7.3,2 Out of the samples already found satisfactory as 
per 7.3.1, a sub-sample as given in col 3 of Table 2 
shall be selected. This sub-sample shall be further 
tested for the requirements of flame resistance 
performance and seam strength. 

7.3.2.1 The lot shall be considered as conforming to 
the requirements of the standard if no defect is found 
in this sub-sample. 

Table 2 Scale of Sampling 

(C/aw^^.y 7.2, 7.3.1 and 7.3.2) 



Lot Size 


Sample Size 


Sub-Sample Size 


(1) 


(2) 


(3) 


2-8 


2 


2 


9-15 


3 


2 


16-25 


5 


3 


26-50 


8 


3 


5M00 


13 


5 


10M50 


20 


5 


151-300 


32 


8 


301-500 


50 


8 


501-1 000 


80 


13 


1001-3 000 


125 


13 


3 001 and above 


200 


20 



IS 15321 : 2003 



IS No. 
177 : 1989 
2977: 1989 



4905 : 1968 
6359: 1971 
9030: 1979 



ANNEX A 

(Clause 2) 

LIST OF REFERRED INDIAN STANDARDS 



Title 
Cotton drills {fourth revision) 
Methods for determination of 
dimensional changes in woven 
fabrics (other than wool) on soaking 
in water {first revision) 
Methods for random sampling 
Methods for conditioning of textiles 
Method for determination of seam 



IS No. Title 

strength of jute fabrics including their 

laminates 
10015 (Part 8) : Size designation of clothes: Part 8 
1983 Headwear 

11871:1986 Methods for determination of 

flammability and flame resistance of 

textile fabric 
12110 : 1987 Glossary of terms used in apparel 

industry 



ANNEX B 

[Table 1 SI No, (ii)] 

DURABILITY REQUIREMENTS 



B-1 GENERAL 



The material shall comply with the flammability 
requirements given in 4 A, 1,2, before and after six 
cycles of washing treatment or 12 cycles of dry- 
cleaning treatment prescribed below. 

B-2 APPARATUS 

B-2.1 Washing Machine — with temperature control 

facility. 

B-3 REAGENTS 
B-3.1 Soft Water 
B-3.2 Neutral Detergent 

B-4 PROCEDURE 

B-4.1 Washing Treatment 

Prepare a wash liquor of neutral detergent solution of 



concentration 2 g/l using soft water. Adjust the washing 
machine to a temperature of 40^C, Place the fabric 
specimen and the wash liquor in the wash tub up to 
the full level of the washer. Start the washing at the set 
temperature for a period of 1 2 min to get one wash 
cycle. Remove the fabric, rinse with the same quality 
of water, dry and condition before evaluating for 
vertical flame test as per Method A of IS 1 1 87 L 

B>4.2 Dry-Cleaning Treatment 

Place the fabric in a container with a dry-cleaning 
solvent to get a material to liquor ratio of 1 :5. Seal the 
jars, clamp in the launderometer and run at room 
temperature for 10 min. Drain. Repeat the above 
process 2 times to complete one cycle. Remove the 
specimen, blot thoroughly, air dry and condition as 
per C-3 before evaluating for vertical flammability test 
as per Method A of IS 1 1 87 1 . 



IS 15321 : 2003 



ANNEX C 

{Clause 5.3) 

METHOD FOR THE DETERMINATION OF SEAM STRENGTH 



C-1 TESTING MACHINE 

A constant rate of extension tensile testing machine as 
described in IS 9030 except that the machine does not 
require means for recording or indicating extension, 

C-2 PREPARATION OF TEST SPECIMENS 

Cut specimens from the garment from a double 
thickness of fabrics such that the seam lies midway 



between the ends and perpendicular to the major axis 
of the specimen when prepared and opened out as 
shown in Fig. 2 (a). Cut the specimen 50 mm wide and 
length shall be such as to provide a nominal gauge 
length of 100 mm. Cut specimen from each seam (up to 
a maximum of five) of the hood. 

C-3 CONDITIONING FOR TESTING 

Condition the test specimens from dry side in the 







500 






20 






















SEAM 


- 


/ 

z 

-J 


UJ 

-J 




125 




250 







(9) DOUBLE THICKNESS SPECIMEN 
AS CUT PROM GARMENT 




DIRECTION 
OF PULL 
DURING TEST 



(b) OPENED OUT SPECIMEN 



* For specimen length / refer to Annex C 

AU dimensions in millimetres. 
Fig. 2 Specimen for Seam Strength 



IS !5321 :2003 



standard atmospheric condition of 65 i 5 percent relative 
humidity and 27 ± 2°C for 24 h before carrying out the 
test, as specified in IS 6359 and the test shall also be 
carried out in the standard atmospheric condition. 

C-4 PROCEDURE 

C-4. 1 Set the clamps of the testing machine so that the 
distance between them is 75 mm for grab method. Take 
a test specimen and insert it in the clamps of the testing 
machine so that its longer side is parallel to the direction 
o[ application of load with approximately the same 
length of fabric extending beyond the jaws of at each 
end and the seam in the'middle of the two clamps. The 
line drawn along the length of the specimen (C-2) shall 
coincide with the left hand side of the 25 mm wide jaws. 
Secure the test specimen between the jaws of one of the 
clamps. Through the free end of the specimen apply a 
tension of about one percent of the expected breaking 
load, and secure it between the jaws of the other clamp. 
While carrying out the test it shall be ensured that the 
seam lies midway between the jaws and perpendicular 
to the direction of pull as shown in Fig, 2 (b). 

NOTH — If the specimen slips in the jaws, breaks in the jaws 
or breaks within 5 mm from the edge of the jaws, the results 
shall be discarded but recorded and another specimen tested in 
lieu thereof. 



C-4.2 Operate the machine and carry the test to rupture 
and record the breaking load of the specimen. Also 
record whether the seam rupture is caused by: 

a) fabric yam breakage; 

b) sewing thread breakage; 

c) fabric yam slippage; or 

d) combination of two or more of these reasons. 

C-4.3 Open both the clamps and remove the broken 
specimen. Take a fresh specimen and determine its 
breaking load as given in C-4.1 and C-4.2 and repeat 
the test with the remaining test specimens. The number 
of test specimens shall be according to the sampling 
plan and criteria of conformity, 

C-5 CALCULATION AND EXPRESSION OF 
RESULT 

Record the seam strength, in newton, of each of the 
load bearing seam and calculate the mean value. 
Express the average strength of the non-load bearing 
seams to 0, 1 N or to 1 percent of the seam strength 
whichever is greater, in newton. 

The result shall be reported in the format as prescribed 
in 9 of IS 9030. 



IS 15321 :2003 



ANNEX D 

(Foreword) 

COMMITTEE COMPOSITION 

Industrial Safety and Chemical Hazards Sectional Committee, CHD 8 



Organization 
National Safety Council, Mumbai 
Airports Authority of India, New Delhi 
Atomic Energy Regulatory Board, Mumbai 
Bhabha Atomic Research Centre, Mumbai 
Central Boiler Board, New Delhi 
Century Rayon, Thane 

Centra! Leather Research Institute, Chennai 

Central Mining Research Institute, Dhanbad 

Centra! Warehousing Corporation, New Delhi 

Confederation of Indian Industries, New Delhi 

Department of Explosives, Nagpur 

Department of Industrial Policy & Promotion, New Delhi 

Development Commissioner (SSI), New Delhi 

Directorate General of Health Services, New Delhi 

Directorate General Factory Advice Services and Labour Institutes, 

^fumbai 
Directorate of Industrial Safety and Health (Factory Inspectorate), 

Mumbai 
Directorate General of Mines Safety, Dhanbad 

Employees State insurance Corporation, New Delhi 
Excel Industries Limited, Mumbai 
Hindustan Aeronautics Limited, Bangalore 
Hindustan Lever Limited, Mumbai 

Indian Institute of Chemical Technology, Hyderabad 
Indian Chemical Manufacturers Association, Mumbai 

Indian Drugs and Pharmaceuticals Limited, Rishikesh 
Indian Petrochemical Corporatiori Limited, Vadodara 



Indian Space Research Organization, Sriharikota 

Industrial Toxicology Research Centre, Lucknow 

Ministry of Defence (DGQA). New Delhi 

Ministry of Deience, Directorate of Standardization, New Delhi 

Ministry of Defence (OFB), Kolkata 



Represenlativefs) 
Shri K. C. Gupta (Chairman) 
Representative 
Shri P. K. Ghosh 
Dr B. N. Rathi 
Representative 
Shri H. G. Uttamchakdanj 

SHRi S, K. MisHRA (Alternate) 
Representative 
Shrj J. K. Pandey 
Representative 
Representative 
Representative 
Dr D. R. CHAWU^ 
Representative 
Representative 
Dr a. K- Majumdar 

Shri S. P. Rana (Alternate) 
Representative 

Director of Mines Safety (MSE) 

Deputy Director of Mines Safety (HQ) (Alternate) 
Representative 
Representative 
Representative 
Shri B. B. Dave 

Shri Aditya Jhavar (Alternate) 
Shrj S, Venkateswara Rao 
Shri V. N, Das 

Shri A, A. Panjwani (Alternate) 
Representative 
Shri P. Vijayrachavan 

Shri M. R. Patel (Alternate 1) 

Shri A. V. Sarathy (Alternate II) 
Shri P. N. Sankaran 

Shri V, K. Srivastava (Alternate) 
Dr Virendra Misra 

Dr V. P. Sharma (Alternate) 
Shri M. S. Sultania 

Shri Sujit Ghosh (Alternate) 
Shri P. S. Ahum 

Lt-Col Tejinder Singh (Alternate) 
Dr D. S. S. Ganguly 

Shri R. Srinivasak (Alternate) 



(Continued on page 7) 



IS 15321 : 2003 



[CoiUhuiedfrom page 6) 

Organization 
Ministry of Defence (R&D), Kanpur 

Ministry of Environment & Forest, New Delhi 
National Institute of Occupational Health, Ahmedabad 
National Organic Chemical Industries Limited, Thane 

National Safety Council, Mumbai 

Oil Industry Safety Directorate, New Delhi 

Safety Appliances Manufacturers' Association, Mumbai 

Standing Fire Advisory Council, New Delhi 

Steel Authority of India Limited, Ranchi 

SI EL Chemical Complex, New Delhi 

Southern Petrochemical Industries Corporation Limited, Tuticorin 

Tata AIG Risk Management Services Limited, Mumbai 
BIS Directorate General 



Representative (s) 

Dr A. K. Saxena 

Dr Rajindra Singh (Alternate) 
Representativ^e 
Representattve 
Dr B. V. Bapat 

Shri y. R. Narla {Alternate) 
Shri p. M. Rao 

Shri D. Biswas (Alternate) 
Shri S. K. Chakrabarti 

Shri V. K. Srivastava (Alternate) 
Represektative 
Representative 
Representative 
Representatfve 
Shrj V. Jayaraman 

Shri S. Muruganandam (Alternate) 
Shri Urmish D. Shah 

Shri S. K. Chaudhuri, Director & Head (CHD) 
[Representing Director General (Ex-officio)] 



Member Secretary 

Shrj N. K. Pal 

Director (CHD), BIS 



Bureau of Indian Standards 

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote 
harmonious development of the activities of standardization, marking and quality certification of goods 
and attending to connected matters in the country. 

Copyright 

BIS has the copyright of all its publications. No part of these publications may be reproduced in any form 
without the prior permission in writing of BIS. This does not preclude the free use, in the course of 
implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. 
Enquiries relating to copyright be addressed to the Director (Publications), BIS. 

Review of Indian Standards 

Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed 
periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are 
needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards 
should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of 
'BIS Catalogue' and 'Standards: Monthly Additions'. 

This Indian Standard has been developed from Doc : No. CHD 8 (130). 



Amendments Issued Since Publication 



Amend No. 



Date of Issue 



Text Affected 



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